<!DOCTYPE html>
<html lang="en">
  <head>
    <link rel="canonical" href="../public_flutter_sound_helper" />
    <meta http-equiv="refresh" content="0; url=../public_flutter_sound_helper" />
  </head>
  <body>
    <p><a href="../public_flutter_sound_helper">New URL</a></p>
  </body>
</html>